Ocular System Flashcards
Combining forms for eye
Opthalm/o, ocul/o, opath/o, opti/o
Orbit
Socket
Palperba
Eyelid (palpebr/o or blephar/o)
Canthus
Angle where upper and lower eyelids meet
Conjunctivia
Mucus membrane that lined the underside of each eyelid
Nictitating membrane
3rd eyelid
Lacrimation
Tear secretion
Nasolacrimal duct
Passage that drains tears to nose
Eyeball
Sphere with multilayered walls
Sclera
White part of eye
Opaque
Light cannot pass through
Tapetum lucidum
Bright colored tissue layer of choroid
Pupil
Circle opening in center of iris
Miosis
Making the opening smaller (pupil)
Mydriasis
Making the opening bigger (pupil)
Lens
Clear capsule behind the iris and pupil (phac/o)
Retina
Nervous tissue layer of eyes that receives images (film)
Electroretinogram
recording electrical activity of retina (test for blindness)
Flourescein stain
Die placed on surface of cornea to test for a corneal injury
Menace response
Movement to see if eye closes
Ophthalmoscope
Instrument used for ophthalmoscopy
Shirmer tear test
Diagnostic test using s paper strip, tests for tear production
Slit lamp
Test of eye using narrow beam of light
Tonometry
Procedure that measures introacular pressure
Anisocoria
Unequal pupil size
Anophthalmos
Without development of one or both eyes